How to differentiate between hotkeys with registerHotKey()

? Offline

Hey there,
I am trying to setup multiple global hotkeys for my application using RegisterHotKey() from "windows.h".
So far I have successfully added hotkeys using the tutorial on this site: amin-ahmadi.com.

Now I do not find anything about how to differentiate between multiple hotkeys using the eventfilter() method.
My code looks like this:

menu.h

#ifndef MENU_H
#define MENU_H

#include <QWidget>
#include "windows.h"

QT_BEGIN_NAMESPACE
namespace Ui { class Menu; }
QT_END_NAMESPACE

class Menu : public QWidget
{
    Q_OBJECT

public:
    Menu(QWidget *parent = nullptr);
    ~Menu();

protected:
    bool nativeEvent(const QByteArray &eventType, void *message, long *result); // From guide by amin-ahmadi.com

private:
    Ui::Menu *ui;
    HWND desktop;

};
#endif // MENU_H

menu.cpp

#include "menu.h"
#include "ui_menu.h"

#include "windows.h"
#include "QDebug"


Menu::Menu(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Menu)
{
    ui->setupUi(this);

    if (!RegisterHotKey((HWND)Menu::winId(), 100, MOD_ALT | MOD_SHIFT, 'D'))
    {
        qDebug() << "Can't register hotkey ALT+SHIFT+D";
    }

    if (!RegisterHotKey((HWND)Menu::winId(), 100, MOD_ALT | MOD_SHIFT, 'S'))
    {
        qDebug() << "Can't register hotkey ALT+SHIFT+S";
    }

}

Menu::~Menu()
{
    delete ui;
}

bool Menu::nativeEvent(const QByteArray& eventType, void* message, long* result)
{
    Q_UNUSED(eventType);
    Q_UNUSED(result);
    MSG* msg = static_cast<MSG*>(message);
    if (msg->message == WM_HOTKEY)
    {
        qDebug() << "Hotkey pressed!";
        true;
    }
    return false;
}

No matter which of the one I press I receive the "Hotkey pressed!" message in the debugger. How can I now differentiate between the two hotkeys being pressed.
Thank you for your insight!

Christian Ehrlicher

Don't see any relation to Qt here but you should read the msdn documentation.